<template>
<div class="app-container">
<el-form label-width="120px">
<el-form-item label="信息描述">
<el-tag type="info">excel模版说明</el-tag>
<el-tag>
<i class="el-icon-download"/>
<a :href="''">点击下载模版</a>
</el-tag>
</el-form-item>
<el-form-item label="选择Excel">
<el-upload
ref="upload"
:auto-upload="false"
:on-success="fileUploadSuccess"
:on-error="fileUploadError"
:disabled="importBtnDisabled"
:limit="1"
:action="BASE_API+'/eduservice/subject/readExcel'"
name="file"
accept="application,.xlsx">
<el-button slot="trigger" size="small" type="primary">选取文件</el-button>
<el-button
:loading="loading"
style="margin-left: 10px;"
size="small"
type="success"
@click="submitUpload">{{ fileUploadBtnText }}</el-button>
</el-upload>
</el-form-item>
</el-form>
</div>
</template>

<script>
export default {
    data(){
        return {
          BASE_API: process.env.BASE_API, // 接口API地址
          fileUploadBtnText: '上传到服务器', // 按钮文字
          importBtnDisabled: false, // 按钮是否禁用,
          loading: false
        }
    },
    created() {
        
    },
    methods:{
        submitUpload() {
            this.fileUploadBtnText = '正在上传'
            this.importBtnDisabled = true
            this.loading = true
            this.$refs.upload.submit()
        },
        fileUploadSuccess(response) {
            if (response.success === true) {
                this.fileUploadBtnText = '导入成功'
                this.loading = false
                this.$message({
                type: 'success',
                message: response.message
                })
            }
        },
        fileUploadError(response) {
            this.fileUploadBtnText = '导入失败'
            this.loading = false
            this.$message({
            type: 'error',
            message: '导入失败'
            })
        }
    }
}
</script>